These classic tuna melts feature tuna salad on a toasted english muffin with melty provolone cheese on top for an easy dinner with things you probably already have in your pantry.
Line your baking sheet with parchment paper or foil, for easy clean-up (optional). Place the halved English muffins cut-side-up on top. Preheat oven to 425 degrees F. Put the English muffins in the oven while it preheats, to toast them up a bit.
Meanwhile, mix the tuna salad. In a medium bowl, mix canned tuna (flake apart with a fork first), diced celery, green onion, sweet relish (1 tablespoon), mayonnaise (½ cup), and salt and pepper to taste.
Take the English muffins out of the oven. Spoon the tuna salad on top of each English muffin half evenly, pressing down on the top with the back of your spoon to pack it on a bit. Place a slice of cheese on top of each. Put back in the oven at 425 degrees F for about 10 minutes, until cheese is melted on top and starting to brown in places.
Garnish with the remaining dark green sliced onions and serve.
Notes
English muffins note: There are many healthy grocery-store English muffins available, such as Dave's Killer Bread and Ezekiel. I used Thomas's. You can also use 8 slices of any bread you like instead of English muffins.
If you prefer a softer tuna melt, don't pre-toast the English muffins in the oven (this will make them a bit crispy, which I love, but they're great soft too).
Feel free to make these in your toaster oven, convection oven, or air fryer if you don't want to heat up your oven. In a pinch, I've also toasted my English muffins in my toaster and then topped with tuna and cheese and zapped it in the microwave to melt it!